<template>
  <div id="aCoursesList" class="bg-fa of">
    <!-- /课程详情 开始 -->
    <section class="container">
      <section class="path-wrap txtOf hLh30">
        <a href="#" title class="c-999 fsize14">首页</a>
        \
        <a href="#" title class="c-999 fsize14">课程列表</a>
        \
        <span class="c-333 fsize14">{{ course.subjectLevelOne }}</span>
        \
        <span class="c-333 fsize14">{{ course.subjectLevelTwo  }}</span>
      </section>
      <div>
        <article class="c-v-pic-wrap" style="height: 357px;">
          <section class="p-h-video-box" id="videoPlay">
            <img height="357px" :src="course.cover" :alt="course.title" class="dis c-v-pic">
          </section>
        </article>
        <aside class="c-attr-wrap">
          <section class="ml20 mr15">
            <h2 class="hLh30 txtOf mt15">
              <span class="c-fff fsize24">{{ course.title }}</span>
            </h2>
            <section class="c-attr-jg">
              <span class="c-fff">价格：</span>
              <b class="c-yellow" style="font-size:24px;">￥{{ course.price }}</b>
            </section>
            <section class="c-attr-mt c-attr-undis">
              <span class="c-fff fsize14">主讲：  {{ course.teacherName }}&nbsp;&nbsp;&nbsp;</span>
            </section>
            <section class="c-attr-mt of">
              <span class="ml10 vam">
                <em class="icon18 scIcon"></em>
                <a class="c-fff vam" title="收藏" href="#" v-if="isCollection" @click="deleteCollection" style="color: #ff0000">收藏</a>
                <a class="c-fff vam" title="收藏" href="#" v-else @click="saveCollection">收藏</a>
              </span>
            </section>
            <section class="c-attr-mt" v-if="!isbuyCourse" @click="createOrder">
              <a href="#" title="立即购买" class="comm-btn c-btn-3" >立即购买</a>
            </section>
            <section class="c-attr-mt" v-if="isbuyCourse" >
              <a  title="立即观看" class="comm-btn c-btn-3" target="_blank" :href="'/player/'+chapterList[0].children[0].videoSourceId">立即观看</a>
            </section>
          </section>
        </aside>
        <aside class="thr-attr-box">
          <ol class="thr-attr-ol ">
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">购买数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{ course.buyCount }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">课时数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{ course.lessonNum }}</h6>
              </aside>
            </li>
            <li>
              <p>&nbsp;</p>
              <aside>
                <span class="c-fff f-fM">浏览数</span>
                <br>
                <h6 class="c-fff f-fM mt10">{{ course.viewCount }}</h6>
              </aside>
            </li>
          </ol>
        </aside>
        <div class="clear"></div>
      </div>
      <!-- /课程封面介绍 -->
      <div class="mt20 c-infor-box">
        <article class="fl col-7">
          <section class="mr30">
            <div class="i-box">
              <div>
                <section id="c-i-tabTitle" class="c-infor-tabTitle c-tab-title">
                  <a name="c-i" class="current" title="课程详情">课程详情</a>
                </section>
              </div>
              <article class="ml10 mr10 pt20">
                <div>
                  <h6 class="c-i-content c-infor-title">
                    <span>课程介绍</span>
                  </h6>
                  <div class="course-txt-body-wrap">
                    <section class="course-txt-body">
                      <p v-html="course.description">
                        {{course.description}}
                      </p>
                    </section>
                  </div>
                </div>
                <!-- /课程介绍 -->
                <div class="mt50">
                  <h6 class="c-g-content c-infor-title">
                    <span>课程大纲</span>
                  </h6>
                  <section class="mt20">
                    <div class="lh-menu-wrap">
                      <menu id="lh-menu" class="lh-menu mt10 mr10">
                        <ul>
                          <!-- 文件目录 -->
                          <li class="lh-menu-stair" v-for="chapter in chapterList" :key="chapter.id">
                            <a    href="javascript: void(0)" :title="chapter.title" class="current-1">
                              <em class="lh-menu-i-1 icon18 mr10"></em>{{ chapter.title }}
                            </a>
                            <ol class="lh-menu-ol" style="display: block;">
                              <li class="lh-menu-second ml30" v-for="video in chapter.children" :key="video.id">
                                <template v-if="video.isFree">
                                  <a :href="'/player/'+video.videoSourceId"
                                     :title="video.title"
                                     target="_blank">
                                  <span class="fr" v-if="video.isFree === true">
                                    <i class="free-icon vam mr10">免费试听</i>
                                  </span>
                                    <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                  </a>
                                </template>
                                <template v-else>
                                  <template v-if="!isNotLogin">
                                    <a href="/login"
                                       :title="video.title"
                                       target="_blank">
                                       <span class="fr" >
                                        <i class="free-icon vam mr10">付费</i>
                                      </span>
                                      <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                    </a>
                                  </template>
                                  <template v-else>
                                    <a v-if="isbuyCourse" :href="'/player/'+video.videoSourceId"
                                       :title="video.title"
                                       target="_blank">
                                      <span class="fr" v-if="isbuyCourse">
                                        <i class="free-icon vam mr10">已付费</i>
                                      </span>
                                      <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                    </a>
                                    <template v-else>
                                      <span class="fr">
                                        <i class="free-icon vam mr10">付费</i>
                                      </span>
                                      <em class="lh-menu-i-2 icon16 mr5">&nbsp;</em>{{ video.title }}
                                    </template>
                                  </template>
                                </template>
                              </li>
                            </ol>
                          </li>
                        </ul>
                      </menu>
                    </div>
                  </section>
                </div>
                <!-- /课程大纲 -->
              </article>
            </div>
          </section>
        </article>
        <aside class="fl col-3">
          <div class="i-box">
            <div>
              <section class="c-infor-tabTitle c-tab-title">
                <a title href="javascript:void(0)">主讲讲师</a>
              </section>
              <section class="stud-act-list">
                <ul style="height: auto;">
                  <li>
                    <div class="u-face">
                      <a :href="'/teacher/'+course.teacherId">
                        <img :src="course.avatar" width="50" height="50" alt>
                      </a>
                    </div>
                    <section class="hLh30 txtOf">
                      <a class="c-333 fsize16 fl" href="#">{{ course.teacherName }}</a>
                    </section>
                    <section class="hLh20 txtOf">
                      <span class="c-999">{{ course.intro }}</span>
                    </section>
                  </li>
                </ul>
              </section>
            </div>
          </div>
        </aside>
        <div class="clear"></div>
      </div>
      <div class="mt50 commentHtml">
        <div>
          <h6 class="c-c-content c-infor-title" id="i-art-comment">
            <span class="commentTitle">课程评论</span>
          </h6>
          <section class="lh-bj-list pr mt20 replyhtml">
            <ul>
              <li class="unBr">
                <aside class="noter-pic">
                  <img width="50" height="50" class="picImg" src="~/assets/img/avatar-boy.gif">
                </aside>
                <div class="of">
                  <section class="n-reply-wrap">
                    <fieldset>
                      <textarea name="" v-model="comment.content" placeholder="输入您要评论的文字" id="commentContent"></textarea>
                    </fieldset>
                    <p class="of mt5 tar pl10 pr10">
                      <span class="fl "><tt class="c-red commentContentmeg" style="display: none;"></tt></span>
                      <input type="button" @click="addComment()" value="回复" class="lh-reply-btn">
                    </p>
                  </section>
                </div>
              </li>
            </ul>
          </section>
          <section class="">
            <section class="question-list lh-bj-list pr">
              <ul class="pr10">
                <li v-for="(comment,index) in data.items" v-bind:key="index">
                  <aside class="noter-pic">
                    <img width="50" height="50" class="picImg" :src="comment.avatar">
                  </aside>
                  <div class="of">
                <span class="fl">
                    <font class="fsize12 c-blue">
                      {{comment.nickname}}</font>
                    <font class="fsize12 c-999 ml5">评论：</font></span>
                  </div>
                  <div class="noter-txt mt5">
                    <p>{{comment.content}}</p>
                  </div>
                  <div class="of mt5">
                    <span class="fr"><font class="fsize12 c-999 ml5">{{comment.gmtCreate}}</font></span>
                  </div>
                </li>

              </ul>
            </section>
          </section>
          <!-- 公共分页 开始 -->
          <div class="paging">
            <!-- undisable这个class是否存在，取决于数据属性hasPrevious -->
            <a
              :class="{undisable: !data.hasPrevious}"
              href="#"
              title="首页"
              @click.prevent="gotoPage(1)">首</a>
            <a
              :class="{undisable: !data.hasPrevious}"
              href="#"
              title="前一页"
              @click.prevent="gotoPage(data.current-1)">&lt;</a>
            <a
              v-for="page in data.pages"
              :key="page"
              :class="{current: data.current == page, undisable: data.current == page}"
              :title="'第'+page+'页'"
              href="#"
              @click.prevent="gotoPage(page)">{{ page }}</a>
            <a
              :class="{undisable: !data.hasNext}"
              href="#"
              title="后一页"
              @click.prevent="gotoPage(data.current+1)">&gt;</a>
            <a
              :class="{undisable: !data.hasNext}"
              href="#"
              title="末页"
              @click.prevent="gotoPage(data.pages)">末</a>
            <div class="clear"/>
          </div>
          <!-- 公共分页 结束 -->
        </div>
      </div>
    </section>
    <!-- /课程详情 结束 -->

  </div>
</template>

<script>
  import course from "@/api/course"
  import comment from "@/api/commonedu"
  import order from "@/api/order"
  import collect from "@/api/collect"
  import cookie from 'js-cookie'

  export default {
    data(){
      return{
        data:{},
        page:1,
        limit:4,
        total:10,
        comment:{
          content:'',
          courseId:''
        },
        courseInfo:{},
        chapterVideoList:[],
        isbuyCourse:false,
        courseId: '',
        chapterList:[],
        course:{},
        isNotLogin:false,
        loginInfo:{},
        isCollection:false,
      }
    },
    created() {
      this.courseId = this.$route.params.id
      this.initCourseInfo()
      this.initComment()
      this.isLogin()
      this.getCollection()
    },
    methods:{
      //获取课程详
        initCourseInfo() {
          course.getById(this.courseId).then(response => {
            console.log(response.data.data.code)
              this.course = response.data.data.course
              this.chapterList=response.data.data.chapterVoList
              this.isbuyCourse=response.data.data.isbuy
        })
      },
      initComment(){
        comment.getPageList(this.page, this.limit, this.courseId).then(response => {
          this.data = response.data.data
        })
      },
      addComment(){
        this.comment.courseId = this.courseId
        this.comment.teacherId = this.courseInfo.teacherId
        comment.addComment(this.comment).then(response => {
          console.log(response)
          if(response.data.success){
            this.comment.content = ''
            this.initComment()
          }
        })
      },
      gotoPage(page){
        comment.getPageList(page, this.limit,this.courseId).then(response => {
          this.data = response.data.data
        })
      },
      //根据课程id，调用接口方法生成订单
      createOrder(){
        if(this.isNotLogin){
          order.createOrder(this.courseId).then(response =>{
            console.log(response)
            if(response.data.success){
              //订单创建成功，跳转到订单页面
              this.$router.push({ path: '/order/'+ response.data.data.orderNo })
            }
          })
        }else{
          window.location.href="/login"        }
      },
      isLogin(){
        var jsonStr = cookie.get("ucenter")
        if(jsonStr){
          this.isNotLogin = true
          this.loginInfo = JSON.parse(jsonStr)
        }
      },
      //收藏
      saveCollection(){
        console.log(this.loginInfo)
        collect.save({
          courseId:this.courseId,
          memberId:this.loginInfo.id
        }).then(response =>{
          if(response.data.success){
            this.isCollection = true
            this.$message.success(response.data.message)
          }
        })
      },
      deleteCollection(){
        collect.delete(this.courseId).then(response =>{
          if(response.data.success){
            this.isCollection = false
            this.$message.success(response.data.message)
          }
        })
      },
      getCollection(){
        collect.getById(this.courseId).then(response =>{
          if(response.data.success){
            this.isCollection =response.data.data.result
          }
        })
      },
    }
  };
</script>
